Category «spectroscopy»

Asymmetric total synthesis of (-)-δ-lycorane

It’s only fair to share… 1H NMR 13C NMR Org. Chem. Front., 2017, Advance Article DOI: 10.1039/C7QO00021A, Research Article Junliang Wang, Jianneng Li, Xianwang Shen, Cong Dong, Jun Lin, Kun Wei A first asymmetric synthesis of (-)-δ-lycorane by using a chiral bifunctional squaramide-catalysed cascade reaction is reported. Asymmetric total synthesis of (−)-δ-lycorane Junliang Wang,ab   Jianneng …

4-Pentenoic acid, 5-(3,4-methylenedioxyphenyl)-3-oxo-, ethyl ester

It’s only fair to share… 4-Pentenoic acid, 5-(3,4-methylenedioxyphenyl)-3-oxo-, ethyl ester cas 860547-52-0 MF C14 H14 O5 4-Pentenoic acid, 5-(1,3-benzodioxol-5-yl)-3-oxo-, ethyl ester Molecular Weight, 262.26 Melting Point (Experimental) Value: 58-60 °C Purification of the residue by flash column chromatography (10% ethyl acetate in hexanes) afforded the β-keto ester (12.0 g, 90%) as a pale yellow oil. …

(5-Chloro-2-methoxyphenyl)[3-fluoro-5-(trifluoromethyl)phenyl]methanone

It’s only fair to share… Cas 329941-92-6 C15 H9 Cl F4 O2 Methanone, (5-chloro-2-methoxyphenyl)[3-fluoro-5-(trifluoromethyl)phenyl]- (5-Chloro-2-methoxyphenyl)[3-fluoro-5-(trifluoromethyl)phenyl]methanone (7) 7 as white crystals mp 93–95 °C; 1H NMR (500 MHz, CDCl3) 7.82 (s, 1H), 7.66 (d, J = 8.5 Hz, 1H), 7.53 (d, J =7.5 Hz, 1H), 7.49 (d, J = 9.0 Hz, 1H), 7.42 (s, 1H), 6.97 (d, …